A horn that is curved is tamei. But a straight [horn] is tahor. If its mouthpiece was of metal, it is tamei. [Regarding] its bell, R’ Tarfon rules it tamei, but the Sages rule it tahor. And when they are joined together, everything is tamei. Similarly, the branches of a candelabra are tahor. But the perach and the base [of the candelabra] are tamei. And when they are joined together, everything is tamei.

A helmet is tamei. But cheek-guards are tahor. If the [cheek-guards] have a receptacle for water, they are tamei. All implements of war are tamei. A kidon, a spearhead, greaves, and a coat of mail are tamei. All women’s jewelry is tamei. A city of gold, chokers, earrings, and finger rings; a finger ring, whether it has a signet or it does not have a signet, [and] nose rings. [Regarding] a choker whose beads are of metal [and strung] on a linen or woolen thread, [even if] the thread snapped, the beads are tamei, since each one by itself is a utensil. [Regarding] a metal thread [that was strung] with beads of precious stones, pearls, or glass, if the beads broke and the thread alone remains intact, [the thread] is tamei. The remnant of a choker [is] the width of neck size of a young girl. R’ Eliezer says: [If] even one bead [remains], it is tamei, since [people] hang [it] around the neck.